OBJECTIVES: To determine whether testosterone supplementation improves reha
bilitation outcomes in ill older men.
DESIGN: A randomized, placebo-controlled, double-blind study.
SETTING: A Geriatric Evaluation and Management (GEM) unit based at a univer
sity-affiliated Veterans Affairs Medical Center.
PARTICIPANTS: Fifteen men aged 65 to 90 years admitted to the GEM for rehab
ilitation.
INTERVENTION: Subjects were randomized to receive weekly intramuscular inje
ctions with testosterone enanthate 100 mg or placebo.
MEASUREMENTS: Task-specific performance using the Functional Independence M
easure (FIM) and grip strength was measured at the onset of the study and a
t the time of discharge from the GEM.
RESULTS: At baseline, FIM scores were similar between the placebo and the t
estosterone group (73.7 vs 70.7, P =.637), as was grip strength (49.7 vs 55
.3 pounds, P =.555). At discharge from the GEM, testosterone-treated patien
ts had improved FLM scores compared with baseline (93.6 vs 70.7; P =.012) a
nd grip strength (68.7 vs 55.3 pounds; P =.033). In the placebo group there
was no significant improvement of FIM scores compared with baseline (78.0
versus 73.7; P.686) or of grip strength (48.9 vs 49.7 pounds; P =.686).
CONCLUSIONS: Testosterone supplementation may improve rehabilitation outcom
es in ill older men.